期刊
SCIENCE
卷 374, 期 6567, 页码 621-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abf4460
关键词
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资金
- Australian Research Council [DE190100803, DE210100930, DP180103874, DE190101152, DP200101900, FL190100139]
- Department of Industry, Innovation and Science [AISRF53765]
- University of Queensland [UQECR2057677]
- Australian Centre for Advanced Photovoltaics fellowship
- Australian Renewable Energy Agency
- Henry Royce Institute
- National Natural Science Foundation of China [51772326]
- RIKEN Information Systems and Cybersecurity [Q20266]
- Slovenian Research Agency [P1-0021]
- Ras al Khaimah Center for Advanced Materials
- Royal Society
- Leverhulme Trust [UF150021]
- Philip Leverhulme Prize [2019]
- European Union's Horizon 2020 research and innovation program [823717-ESTEEM3]
- National Agency for Research future investment TEMPOSCHROMATEM [ANR-10-EQPX-50]
- Australian Research Council [DE190101152, FL190100139, DE190100803, DP200101900, DE210100930] Funding Source: Australian Research Council
By utilizing metal-organic framework glasses, a family of scalable composites was created to stabilize lead halide perovskite's nonequilibrium phases, resulting in bright photoluminescence and high stability.
Lead halide perovskite (LHP) semiconductors show exceptional optoelectronic properties. Barriers for their applications, however, lie in their polymorphism, instability to polar solvents, phase segregation, and susceptibility to the leaching of lead ions. We report a family of scalable composites fabricated through liquid-phase sintering of LHPs and metal-organic framework glasses. The glass acts as a matrix for LHPs, effectively stabilizing nonequilibrium perovskite phases through interfacial interactions. These interactions also passivate LHP surface defects and impart bright, narrow-band photoluminescence with a wide gamut for creating white light-emitting diodes (LEDs). The processable composites show high stability against immersion in water and organic solvents as well as exposure to heat, light, air, and ambient humidity. These properties, together with their lead self-sequestration capability, can enable breakthrough applications for LHPs.
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